Zobrazeno 1 - 10
of 1 019
pro vyhledávání: '"Alamouti"'
Autor:
Prateek Anand, M. K. Arti
Publikováno v:
IEEE Access, Vol 12, Pp 46104-46108 (2024)
We investigate a hybrid scheme that is a combination of orthogonal and non-orthogonal multiple access (NOMA) techniques. Specifically, we use Alamouti code for transmission of the symbols; each symbol contains the information of two or more users by
Externí odkaz:
https://doaj.org/article/0f967072debe42e5b9072be9f553db4a
Autor:
Seong Ho Chae, Hoojin Lee
Publikováno v:
ICT Express, Vol 9, Iss 4, Pp 714-721 (2023)
This paper studies physical layer security for Alamouti space–time block code (STBC) with joint maximum likelihood (JML) or zero forcing (ZF) detection techniques particularly over multi-input single-output (MISO) wiretap time-selective Rayleigh fa
Externí odkaz:
https://doaj.org/article/68894025d16847e9b2942d29ff5b14b0
Autor:
Nooshin Garakyaragh, Kamal Shahtalebi
Publikováno v:
ICT Express, Vol 9, Iss 3, Pp 409-414 (2023)
Block timing synchronization, which could be data-aided or non-data-aided, is a critical part of space–time block codes (STBCs) for recovery of transmitted symbols. The data-aided schemes are not suited for some problems like bandwidth efficiency a
Externí odkaz:
https://doaj.org/article/abc3a636de9b42759df7622d9a293e9b
Publikováno v:
IEEE Access, Vol 11, Pp 129954-129962 (2023)
Information is conveyed by either time, antenna, and/or frequency in the conventional modulation. In this paper, we propose a novel technique to convey information in Alamouti space-time block coding systems. In the proposed technique, the informatio
Externí odkaz:
https://doaj.org/article/b5b5effbf4ee40bc84b784d1122dea7c
Autor:
Lucky Nindya Palupi, Totok Winarno
Publikováno v:
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), Vol 16, Iss 2, Pp 43-50 (2022)
Peningkatkan keandalan sistem multiband orthogonal frequency division multiplexing (MB-OFDM) ultra-wideband (UWB) dengan memanfaatkan waktu bersama dan demodulasi domain frekuensi diharapkan dapat meningkatkan kinerja. Modulasi posisi pulsa terbalik
Externí odkaz:
https://doaj.org/article/a4f1f7f4ebcd41259c393085816b4f49
Publikováno v:
Digital Communications and Networks, Vol 8, Iss 1, Pp 58-63 (2022)
In this paper, we address the Alamouti code in Filter-Bank Multicarrier with Offset Quadrature Amplitude Modulation (FBMC/OQAM) and propose a novel block-wise Alamouti code, in which a repeated block is designed to eliminate the imaginary interferenc
Externí odkaz:
https://doaj.org/article/3fc7b1b9f4f842789613d23821356a08
Akademický článek
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Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 1, Pp 1-8 (2022)
In this work, spatial diversity techniques have been proposed for free-space optical (FSO) communication systems to combat the deteriorating effects, such as atmospheric turbulence effects and pointing errors, and the performance of FSO communication
Externí odkaz:
https://doaj.org/article/650910f1f4d143009837aa8081e0190b
Publikováno v:
IEEE Access, Vol 8, Pp 65649-65657 (2020)
Conventional differential modulation is capable of performing detection without knowledge of the channel state information at the receiver. However, it suffers a 3 dB error performance penalty as compared to its coherent counterparts. Generalized dif
Externí odkaz:
https://doaj.org/article/41cadb2782764f68b9729288bb496c84
Publikováno v:
Düzce Üniversitesi Bilim ve Teknoloji Dergisi, Vol 7, Iss 3, Pp 2010-2018 (2019)
Kablosuz haberleşme sistemlerinin performansı kanal sönümlemelerinden etkilenmektedir. Yeni nesil kablosuz sistemlerin gelişimiyle beraber güvenilir bağlantı ihtiyaçları da artmaktadır. Kablosuz iletişimdeki en büyük zorluk, sönümleme
Externí odkaz:
https://doaj.org/article/fe83b243c0864cf3b0ce4f07a3ff7014